Sheet metal container



J. HENCHERT sept. 22, 1953 SHEET METAL GNTINER Filed sept. e, 194eINVENToR. Qomwe/ncwz/b BY Wauu ornegs Patented Sept. 22, 1953 SHEETMETAL CONTAINER John Henchert, Chicago, Ill., assignor to ContinentalCan Company, Inc., New York, N. Y., a corporation of New YorkApplication September 26, 1946, Serial No. 699,458

2 Claims. l

The invention relates generally to sheet metal containers and primarilyseeks to provide a novel container of the type embodying a friction plugclosure and which, while adapted to more general usage, is particularlyadaptable to the packaging of heavy liquids such as paint,

An object of the invention is to provide a novel container structure ofthe character stated wherein the body, which may be of the type havltothe following detailed description, the appended claims, and the severalviews illustrated in the accompanying drawing.

In the drawing:

Figure l is a fragmentary part side elevation and part vertical crosssection illustrating a container closure embodying the invention.

Figure 2 is an enlarged fragmentary vertical cross section illustratingthe improved closure ing a standard lock and lap side seam, has a rela-10 and one of a plurality of indentations disposed tively wide open endto which is double seam to yeldably lock under the curl or bead at thesecured a drawn metal collar including an offset lower end of thecollar, a prying tool being shown or top wall portion disposedsubstantially perin position for prying the closure out of itsfricpendicularly to the body axis just short of the F tion mounting, anda container fragment being depth of and opposite the double seam, and a1 shown as nested over the closure member and deep friction wallsubstantially paralleling the resting upon the top double seam of thecontainer body wall and spaced therefrom only a slightly in dottedlines. greater distance than the inward projection of Figure 3 is a viewsimilar to Figure 2 showing the side seam and terminating in an inwardlyt) a sealing medium carried by the closure member turned Seat curl orbead. in position for engaging in sealing contact with Another object ofthe invention is to provide the curl or bead at the lower end of thecollar. a container structure of the character stated In the drawings inWhich like numerals 0f refwherein the cenar is turned inwardly at itslower erence indicate like parts in all of the gures, 5 end to form .aseat curl or bead and wherein generally designates the Carl bOdY, and 6generthere is included a friction plug closure member ally designatesthe Collar Which forms a friction having an upright wall disposed toengage in seat for the closure member which is of the frictightfrictional contact with the deep friction tion plug type and isgenerally designated l. wall of the collar, said closure member beingoii- The collar is attached to the body by a standset inwardly at itslower end to receive said curl ard double seam 8, and the body may havea or bead and equipped with indentations disposed standard lock and lapside seam including the to yieldably lock under said curl or bead. lockor hook portion 9 and the lap portion Iii, said Another object of theinvention is to provide lap portion starting in the conventional mannera container structure of the character stated just below the double seam8 and being formed wherein the closure plug friction wall terminatesinto said seam structure. The collar has a horiat its upper end in anoutwardly turned curl or zontal oiiset Il extending inwardly from thedoubead which extends above and inwardly of the ble seam 8 in adirection perpendicular to the double seam by which the collar isattached to axis of the can body at a point just above the the containerbody in position for having a lift lower limit of and opposite thedouble seam 8. ing tool inserted thereunder and engaged with The oisetIl extends inwardly a limited distance said seam as a fulcrum foreffecting a lifting out suiiicient to clear the hook portion 9 of theside or removal of said closure, said collar curl also seam, and at theinner terminus of the oiset, being disposed to project upwardly and nestas a collar turns downwardly to provide a deep skirt centeringprojection within the double seam at wall l2 which parallels the canbody wall but is the bottom of a container resting upon the firstentirely free of contact with yany portion thereof, mentioned doubleseam. including the side seam structure. At its lower Another object ofthe invention is to provide end, the friction wall l2 terminates in anina container structure of the character stated wardly bent curl or beadI3 which forms a stop wherein the closure memberofset is so formed asseat for the closure member generally desigto provide an annular seatfor carrying sealing mated 1 material in position for engaging andproviding a The closure member has an upright wall ill diseal againstthe curl or bead at the bottom of the mensioned to engage in a tightfriction t withcollar. in the collar wall l2 and which terminates at itsWith the above and other objects in view that upper end in an outwardcurl or bead I5. When will hereinafter appear, the nature of the inven-5r the closure member is fully seated within the coltion will be moreclearly understood by reference lar, said curl or bead l5 extends aboveand is spaced inwardly of the double seam 8 so as to provide about sinch clearance inwardly and above said double seam in which to receive aprying tool I6 in the manner clearly illustrated in Figure 2 of thedrawing. By engaging the prying tool under the bead l and on the doubleseam 8 as a fulcrum, the closure member can be readily lifted out of itsfriction seat.

It will also be apparent by reference to Figure 2 that by reason of theparticular positioning of the closure member curl or bead I5 above andinwardly of the top double seam 8 of the container structure, said curlor bead forms a centering means for the bottom double seam il of acontainer nested over said curl or bead and resting on the top of saiddouble seam 8 in the manner indicated in dotted lines in Figure 2.

The closure member 'i is provided with an offset I8 extending inwardlyin a horizontal direction or perpendicular to the axis of the closurewall I4, and this offset or shoulder provides a stop limiting downwardmovement of the closure member within the collar friction wall l2 anddefinitely determining the amount of projection of the closure membercurl or bead l5 above the top double seam 8. At the inner terminus ofthe offset ld, the closure Wall is turned downwardly in a directionsubstantially paralleling the wall of the container body to provide anupright wall IQ extending within and through the collar curl or bead I3.The upright and offset closure wall i9 is joined as at 2e with theupwardly domed center body 2i of the closure member.

When it is desired to provide a very secure attachment of the frictionplug closure member l within the receiving collar 5, the upright wallportion i8 of said closure member may be provided with a plurality ofoutwardly extending infdentations Z2 effective to yieldably lock underthe collar curl or bead i in the manner clearly ill istrated in Figure2. Such indentations will serve to secure the closure member againstinadvertent displacement during shipment, and yet will not objectionablyresist the prying off of said closure member.

If desired, the inwardly offset portion of the closure member may beshaped as at 23 to receive a sealing means 2li in the ferm of a gasketor sealing compound deposit disposed to engage in sealing contact withthe collar bead or curl i3 in the manner clearly illustrated in Figure3.

The herein disclosed container structure is simple in form and can beeconomically manufactured, and the particular arrangement and shaping ofthe friction contacting surfaces of the closure member and the receivingcollar provide a very tight seal even after the closure inember has beenremoved a number of times. The spacing of the collar wall i2 a limiteddistance only from the can body wall and the specific positioning of thecollar offset il provides just the proper amount of rigidity to assureagainst damaging and distortion of the friction wall by blows againstthe outside of the container, and yet sufcient yield is provided in thefriction wall to assure the provision of efficient friction sealingcontact throughout the whole circumference of the friction engagingsurfaces of the collar and the closure member.

The spacing away of the collar friction wall i2 also assures theprovision of uniform diameter of said wall and provides an overhanginglower edge portion at the curl or bead I5 which will minimize splashingof liquid within the container as filled cans are being conveyed from afilling machine to a closing or plugging machine, and this overhang alsoprovides an efficient brush wipe when the container is used in packagingpaint,

In the friction plug receiving collar formed in the manner hereindescribed, it will be apparent that the provision of annular channels inwhich paint or other liquids can collect and ob- ,jectionably foul theclosure is avoided, and it is 'unnecessary in effecting the attachmentof the collar to the can body to engage the plug or closure receivingfriction surface of the collar with the seaming chuck. In this manner,the friction sealing surface is not subject to variations due tovariations in the engaging chuck surfaces. It will also be apparent byreason of the formation of the collar herein disclosed it is possible toprovide a container structure in which are included the standard formsof double end seams and lock and lap side seams, another veryadvantageous feature.

While examples of specific embodiment of the invention are hereindisclosed, it is to be understood that variations of the specificstructure of the cooperating parts of the invention are comprehended inthe invention as defined in the appended claims.

claim:

l. A sheet metal container comprising a body portion having an outwardlyturned flange at the upper edge thereof, a drawn metal collar extendinginto the open end of said body and having a flange rolled outwardly intoa seam with the flange on the body, the inner face of said collar beingdimensioned so as to provide a friction seat for a closure plug, thelower portion of said collar being rolled inwardly, upwardly andoutwardly into a resilient hollow bead with its free edge close to saidinner face and slightly outwardly and downwardly turned, a friction plugclosure member having a depression surrounded by a substantiallyvertical wall conforming to and frictionally engaging said inner face ofthe collar, the lower portion of the vertical wall of the closure memberbeing offset inwardly to receive the hollow bead at the lower end of thecollar and shaped to provide an annular stop shoulder disposed foroverlying the bead adjacent the free edge thereof and an upwardly andinwardly projected pocket for containing a sealing material, sealingmaterial in said pocket in position for opposing the collar bead andsaid offset also being extended below the bead on the lower portion ofthe collar and having outwardly and upwardly directed indents therein atcircumferentially spaced intervals for engaging outwardly and upwardlyagainst said resilient hollow bead and securing the closure member tothe container with said annular stop shoulder pressed tightly againstsaid collar bead and with the sealing material pressed in tight sealingcontact against said resilient collar bead.

2. A sheet metal container comprising a body portion having an outwardlyturned flange at the upper edge thereof, a drawn metal collar extendinginto the open end of said body and having a flange rolled outwardly intoa seam with the flange on the body, the inner face of said collar beingdimensioned so as to provide a friction seat for a closure plug, thelower portion of said collar being rolled inwardly, upwardly andoutwardly into a resilient hollow bead with its free edge close to saidinner face and slightly outwardly and downwardly turned, a friction plugclosure member having a depression surrounded by a substantiallyvertical wall conforming to and frictionally engaging said inner face ofthe collar, the lower portion of the vertical wall of the closure memberbeing oiset inwardly to receive the hollow head at the lower end of thecollar and shaped to provide an annular stop shoulder disposed foroverlying the bead adjacent the free edge thereof and an upwardly andinwardly projected pocket for containing a sealing material, sealingmaterial in said pocket in position for opposing the collar bead andsaid oiset also being extended below the bead on the lower portion ofthe collar and having outwardly and upwardly directed indents therein atcircumferentially spaced intervals for engaging outwardly and upwardlyagainst said resilient hollow bead and securing the closure member tothe container with said annular stop shoulder pressed tightly againstsaid collar bead and with the sealing material pressed in tight sealingContact against said resilient collar bead, said friction plug verticalwall terminating at its upper end in an outwardly and then downwardly,inwardly and upwardly curled resilient bead disposed wholly above andspaced upwardly and inwardly within the inner diameter of said doubleseam to present a resilient downwardly directed shoulder against 6 whichto receive a prying tool, and also providing a centering projection fornesting within the bottom seam of another like container structurestacked thereon.

JOHN HENCHERT.

References Cited in the le of this patent UNITED STATES PATENTS NumberName Date 795,102 Carnes July 18, 1905 1,251,027 Hodgson Dec. 25, 19171,381,704 Draper June 14, 1921 1,856,941 Anderson May 3, 1932 FOREGNPATENTS Number Country Date 24,353 Great Britain Oct. 31, 1906 178,769Switzerland July 31, 1935 203,971 Great Britain Sept. 20, 1923 207,976Great Britain Dec. 13, 1923 257,743 Great Britain Sept. 9, 1926 257,998Great Britain Sept. 9, 1926 360,716 Germany Oct. 6, 1922 435,841 GreatBritain Sept. 30, 1935 544,472 Germany Feb. 17, 1932 632,625 France Oct,10, 1927

